package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

/**
 * @author : Sonic
 * @version : 1.0
 * @createTime : 2024-12-03  22:00
 * @description :
 */
@Service
@Slf4j
public class UserServiceImpl implements UserService {

    public static final String WX_LOGIN_API = "https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;

    /**
     * @param: [userLoginDTO]
     * @return: com.sky.entity.User
     * @description: WX login
     **/
    @Override
    public User wxLogin(UserLoginDTO userLoginDTO) {
//        // 调用微信接口获取openid
//        Map<String, String> map = new HashMap();
//        map.put("appid", weChatProperties.getAppid());
//        map.put("secret", weChatProperties.getSecret());
//        map.put("js_code", userLoginDTO.getCode());
//        map.put("grant_type", "authorization_code");
//        String json = HttpClientUtil.doGet(WX_LOGIN_API, map);
//        JSONObject jsonObject = JSON.parseObject(json);
//        String openid = jsonObject.getString("openid");
        String code = userLoginDTO.getCode();
        String openid = getOpenid(code);
        // openid是否为空
        if (openid == null) {
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        // 是否是新用户,新用户需要保存
        User user = userMapper.getByOpenid(openid);
        if (user == null) {
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now()).build();
            userMapper.insert(user);
        }
        return user;
    }

    /**
     * @param: [code]
     * @return: java.lang.String
     * @description: 调用微信接口获取openid
     **/
    private String getOpenid(String code) {
        // 调用微信接口获取openid
        Map<String, String> map = new HashMap();
        map.put("appid", weChatProperties.getAppid());
        map.put("secret", weChatProperties.getSecret());
        map.put("js_code", code);
        map.put("grant_type", "authorization_code");
        String json = HttpClientUtil.doGet(WX_LOGIN_API, map);
        JSONObject jsonObject = JSON.parseObject(json);
        return jsonObject.getString("openid");
    }
}
